The sales tax in one town is 8%. so, the total cost of an item can be written as c + 0.08c. what is the total cost of an item that sells for $12? plz

Hi my sisters and brothers can tell me the answer because i don’t understand the question

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.